单喷嘴干煤粉气化工艺
dry coal powder gasification process with single burner
多喷嘴对置式水煤浆气化工艺
water coal slurry gasification process with multi-burners oppositely arranged
大摆喷工艺
big swing-jet grouting technology
复喷工艺
douhle-jetcrete technological
旋喷工艺
directional jet technology
煤工艺性
technologic properties of coal
台阶式割煤工艺
stepped mining technology
选煤工艺
coal preparation process
coal dressing technology
coal cleaning process
process of coal preparation
coal preparation technique